baber/WOPTO huggingface dataset:
Patent GB-1111105-A (GB)
Title: Cellulosic fibrous product and process for its production
Inventor: HUMISTON CHARLES GEORGE
IPC: D21H17/45
Filed: 1966-02-17
Abstract: Acrylamide and 2-aminoethyl methacrylate hydrochoride are copolymerized in aqueous solution in the presence of hydrogen peroxide, thiourea and copper sulphate.  The polymer solution obtained is used in the treatment of paper (see Division D2).ALSO:A paper comprises a web of cellulosic fibres containing water-soluble inter-polymers of a mixture of at least one amide CH2=CRCONH2 and an aminoalkyl ester CH2=CRCOOCnH2n NH2, or a mineral acid salt thereof, wherein R is H or CH3 and n is 2 or 3.  The interpolymer has a Staudinger mol. wt. of at least 5,000.  The monomers are present in the ratio of at least 1.5 mole amide to 1 mol amino alkyl ester.  The paper may contain 0.01-3% wt. inter-polymer.  The salts may be derived from an acid of pKa below 4, e.g. HCl, HBr, H2SO4, HNO3 or H3PO4.  The inter-polymers may contain up to 25% wt. of a monoethylenically unsaturated acrylic monomer having up to 7 carbon atoms e.g. N-methyloacrylamide, acrylonitrile, methacrylonitrile, ethyl a -hydroxymethylol acrylate, alkyl and hydroxyalkyl esters of acrylic and methacrylic acids wherein the alkyl group has 1-3 C atoms.  The polymer may contain polymerisation modifiers, e.g. thiourea and 2-mercaptoethanol, copper and peroxide catalysts and chelating agents.  The polymer may be added, e.g. as a 0.01-10% aq. solution, to an aq. suspension of fibres to give a mixture of pH4. The fibre suspension may contain alum.  The fibres may be then wet laid and dried.  Alternatively an aq. soln. of the polymer may be applied to a preformed web which is then dried.  The Specification also describes the above paper containing alum and/or a clay filler, and papers containing poly-2-aminoethyl methacrylate hydro-chloride, poly-N, N-dimethyl-2-aminoethyl methacrylate hydrochloride, poly-N-methyl-2-aminoethyl methacrylate hydrochloride, poly-2-aminoethyl methacrylate hydrochloride or polyacrylamide.
Patent GB-539373-A (GB)
Title: Improvements in centrifugal pumps
IPC: F04D29/16
Filed: 1940-04-20
Abstract: 539,373. Centrifugal pumps. HAYWARD, TYLER & CO.,. Ltd., and HOWARD, G. P. E. April 20, 1940, No. 7158. [Class 110 (i)] In a centrifugal pump, leakage between discharge and suction is prevented by an annular weir plate 14 which bears closely on the eye of the impeller and has radial clearance at its periphery relatively to a fixed partition 10, against which it may be clamped by springs or a wall 8 of the discharge passage, as well as by the discharge pressure acting on the face adjacent the impeller. The hydraulic pressure may be increased by connecting a recess 15 in the other face with the suction side by means of a port 16. The passages 3, 3a between successive stages, have diffuser blades 5, 6. Rotation of the rings 14 is prevented by pins 28 in the partitions 10 engaging the rings with clearance. In its application to pumps of the open impeller type, the weir plate is slidably mounted by means of a boss on the balancing piston carried by the impeller shaft.
Patent GB-883263-A (GB)
Title: Method of polymerization of vinyl esters
IPC: C08F8/12
Filed: 1960-03-01
Abstract: Vinyl esters are polymerized in a homogeneous system in aqueous alcohol containing 5 to 50% of water at 60 DEG  C. or lower.  The polymerization initiator may be benzoyl peroxide, azo-bisisobutyronitrile, a ceric salt such as the perchlorate, nitrate or sulphate or light or ultraviolet radiation, e.g. a mercury lamp.  The vinyl ester may be vinyl acetate or butyrate and the preferred solvent is aqueous methanol, but other solvents specified in comparison examples are methanol, acetone, acetic acid and ethyl acetate.  The polymerization may be carried out at such low temperatures as -20 DEG  C. and the polyvinyl esters produced may be hydrolyzed to the polyvinyl alcohols.
Patent GB-778379-A (GB)
Title: Improvements in or relating to the electric heating of melting furnaces
IPC: H05B3/00
Filed: 1953-03-16
Abstract: 778,379. Electrode furnaces; current supply. SOC. ANON. DES MANUFACTURES DES GLACES ET PRODUITS CHIMIQUES DE ST. GOBAIN. CHAUNY & CIREY. March 16, 1953 [March 15, 1952], No. 7254/53. Class 39(3) In heating the contents of a melting. furnace e.g. glass by passage of polyphase current therethrough, each of the phases is applied to the contents through separate zones therein, and the voltage of one or more of the phases is controlled to ensure that the vector sum of the component voltages is not zero, and the resultant voltage of the sum is applied to pass a current through a further zone of the charge. Thus the separate independently adjustable phases of a three phase current from a transformer are applied to electrodes A1 and A2, B1 and B2, C1 and C2 . respectively. The electrode A2 is connec. ted to electrode B1, and electrodes B2, C1 are connected and electrode C2 is connected by a cable to a supplementary electrode D, whereby the resultant voltage is applied between electrodes D o  A1 in the charging zone of the furnace. Hence the heating effect in different zones of the furnace may be varied. Alternatively, electrodes B2 and C1 are connected, and electrode C2 is connected by a cable outside the furnace to electrode A1, whereby the resultant voltage is applied between electrodes A2, B1. The electrodes are preferably horizontal and a current of more than three phases may be used, each phase being supplied to a pair of electrodes.
Patent GB-853377-A (GB)
Title: Device for pedal starting of motor-cycle engines
Inventor: CORBO GUGLIELMO
IPC: F02N3/04
Filed: 1959-03-03
Abstract: 853,377. Engine turning gear. INNOCENTI SOC. GEN. PER L'INDUSTRIA METALLURGIA E. MECCANICA. March 3, 1959, No. 7280/59. Class 7(5). A device for pedal starting of motor cycle engines comprises teeth 6 arranged in a circular row on one of the toothed wheels 7 of the change speed gearing, an arm radially extending from the shaft 2 of the starting pedal and one or two teeth 5 carried by the arm and adapted to cooperate with the first mentioned teeth in order to couple the pedal shaft with the toothed gear when the pedal is depressed. Thus when the pedal is depressed a spring 8 forces a piston 4 with the teeth 5 thereon into engagement with the teeth 6. When the pedal is released a projection 9 co-operates with a cam 10 to withdraw the piston against the action of the spring 8.
Patent GB-1172629-A (GB)
Title: Metal-Polymer Compositions
Inventor: SAUNDERS FRANK LINWOOD
IPC: H01F1/28
Filed: 1967-02-15
Abstract: 1,172,629. Polyolefin compositions. DOW CHEMICAL CO. 15 Feb., 1967 [18 Feb., 1966], No. 7314/67. Heading C3P. Compositions comprise at least 40 volume per cent of irradiated olefin polymer and at least 40 volume per cent of finely divided metallic particles dispersed therein. Specified polymers are polyethylene, polypropylene, poly - 4 - methylpentene - 1, and copolymers of ethylene and propylene or butene- 1. Specified metals are aluminium, lead and iron. Carbon black may also be present. The compositions may be moulded to form cups, cones for electromagnets, machined parts, housings, decorative articles, gears, bearings and pulleys. Irradiation may be effected by a high energy electron or γ-ray source. Examples describe polyethylene irradiated and mixed with aluminium powder.
Patent GB-1031854-A (GB)
Title: Gear drives
IPC: F16H57/02
Filed: 1964-02-24
Abstract: 1,031,854. Toothed gearing. ROCKWELLSTANDARD CORPORATION. Feb. 24, 1964 [May 6, 1963], No. 7532/64. Heading F2Q. In a hypoid gear drive assembly, a pinion gear 42 and crown-wheel 36 each have spiral teeth having spiral angles of not more than 37 degrees which permit the pinion gear to drive the crown wheel effectively in either direction of rotation. Preferably the pinion has a spiral angle of between 33 and 37 degrees and the crown wheel has a spiral angle of between 18 and 37 degrees. Crown wheel 38 is attached to a flange 120 of a differential case 114 from which axle shafts 116, 118 extend. The housing is in two parts, a main portion 96 and a pinion carrying portion 98.
Patent GB-903144-A (GB)
Title: Improvements in or relating to the production of semi-conductor rods
Filed: 1959-03-04
Abstract: <PICT:0903144/III/1> An element, e.g. silicon or germanium, is deposited from a gaseous compound thereof on to a molten drop of the element supported on the upper end of a rod of the element and a thinner monocrystalline rod is drawn upwards from the drop.  The thicker rod may have a diameter of 2 cm. or more.  An electromagnetic field may aid support of the drop.  The drop may be produced by melting a portion of the thicker rod by means of induction or an arc. The thinner monocrystalline rod may be rotated on withdrawal and the supporting thicker rod may be rotated in the same or opposite direction.  Doping substances may be added intermittently to the reactant gas to produce p-n junctions.  As shown a reaction vessel 1 having a gas inlet 9 and a gas outlet 8 contains a rotatable polycrystalline rod 2 and an adhering drop 4 maintained molten and held in position by means of an induction heating coil 61 and a high frequency support coil 62.  The heating and supporting means may consist of a single high frequency coil and may be arranged outside the reaction vessel (not shown).  The monocrystalline rod produced passes through a gland 12, a cooling coil 7, and rollers 10 and 11 for rotation and withdrawal.
Patent GB-464003-A (GB)
Title: Improvements connected with control valves for gas and like burners
IPC: B01F5/04
Filed: 1936-03-12
Abstract: 464,003. Gas burners. PRESTON & THOMAS, Ltd., and PRESTON, J. H. March 12, 1936, No. 7550. [Class 75 (i)] An air-regulator 9, controlled from the gas cock 5, is provided with substantially triangular openings 10 co-operating with similarly shaped air inlets 14 in the mixing chamber 13 and is adjustably screwed on an extension 6 of the cock 5 carrying the nipple 7. The regulator 9 is locked by means of nuts 12 in an adjusted position according to the amount of air required for the particular gas used. An indicator may be provided on the spindle 15.
Patent GB-952211-A (GB)
Title: A printing apparatus for applying code elements to postal letters, packages or the like
Inventor: STEINER OTTO
IPC: G06K1/12
Filed: 1961-03-01
Abstract: 952,211. Selective printing. SIEMENS & HALSKE A.G. March 1, 1961, No. 7562/61. Heading B6F. [Also in Division B8] A machine for printing a pattern of space dashes forming a letter sorting code (see Division B8), comprises a printing head 1 carrying five rows of printing pins 2. Each pin is projected into a set printing position by the action of a respective magnet 3 (1 only shown) and they are retained by latching pins 5. The dashes may be printed in magnetic ink. As the letters 9 are traversed past the printing head 1 on a conveyer belt 7, the head 1 and a platen 10 are brought into printing position (passing through wnidows in guides of a conveyer channel 6) by cams 11, 12, and associated linkage. A spring-mounted inking roller 22 is projected across the head 1 by the action of a cam 21.
Patent GB-1136082-A (GB)
Title: Wood-treatment compositions
Inventor: NICHOLSON JAMES
IPC: B27K3/52
Filed: 1965-02-22
Abstract: 1,136,082. Preserving wood. HICKSON'S TIMBER IMPREGNATION CO. (GB) Ltd. 27 Jan., 1966 [22 Feb., 1965], No. 7565/65. Heading A5E. [Also in Divisions B1 and Dl] An aqueous wood impregnant contains 0.1-3% of dispersed paraffin wax of mp 40-50‹C, 0.008-0.36% of a non-ionic wax emulsifying agent, and 1-10% of a preservative. The emulsifying agent is a condensate of a C 10-18  fatty alcohol or a C 7-11  alkyl phenol, has one or more polyoxyethylene chains containing at least 25 ethylene oxide units and has a hydrophilic balance of 12-22. The preservative may be a composition containing sodium fluoride, arsenic pentoxide, sodium arsenate, sulphate or arsenate of copper or zinc, chromic acid, sodium chromate, or sodium or potassium dichromate. The composition may also contain monoammonium or diammonium phosphate, ammonium sulphate, boric acid, or sodium tetraborate as fire retardants. It may also contain petroleum jelly of mp 38-56‹C in a ratio of wax to jelly of 45:55 to 70:30. The wood may be impregnated by the alternate application of pressure and vacuum.
Patent GB-1140797-A (GB)
Title: Live storage structures
Inventor: GREENFIELD GORDON STEWART
IPC: B65G1/06
Filed: 1967-02-17
Abstract: 1,140,797. Storage conveyers. STEEL EQUIPMENT CO. Ltd. 13 Feb., 1968 [17 Feb., 1967], No. 7665/67. Heading B8A. [Also in Division A4] A live storage structure for goods &c. comprises a horizontally reciprocable roller track with intermittently operable means to clamp the goods against movement as the track moves in one direction and release the goods to move with the track when the latter moves in the other direction. An installation for flat-bottomed articles comprises a track assembly 6-8 supported on wheels 5 and reciprocable by a pneumatic ram 9. In the middle of the track is a bar 10 provided with friction pads 14 engageable with the underside of the articles, the bar being raised and lowered by a ram (13), Fig. 3 (not shown). When articles are to be moved along the track, e.g. following removal of articles from the output end, ram 9 is operated to move the track towards the output end, completion of this stroke causing operation of the ram (13). Bar 10 is thus lifted into engagement with the articles after which ram 9 returns the track to its starting position, the articles being held stationary. The ram (13) is then operated to lower the bar 10 and release the articles ready for movement by subsequent cycles. The control of air for the rams may be initiated by sensing means that detect absence of articles at the output end. By changing the sequence of operation of the rams the articles may be fed in the opposite direction.
Patent GB-874079-A (GB)
Title: Colour photography processes
IPC: G03C5/305
Filed: 1958-03-10
Abstract: 874,079. Colour photography; developers. KODAK Ltd. March 10, 1958 [March 8, 1957], No. 7694/58. Class 98(2) Photographic colour material comprising three silver halide emulsion layers containing colour couplers is reversal developed using a first developer (black-and-white developer) containing polyethylene glycol or a non-ionic derivative thereof. The derivative may be one in which the ends of the chains are formed by reaction with aliphatic alcohols such as oleyl or cetyl alcohols, aliphatic acids or amines, phenols such as pnonylphenol or hexitol ring dehydration products. In Example 1, the black-and-white developer contains metol, hydroquinone, sodium hexametaphosphate, sulphite, carbonate, bromide, iodide, thiocyanate, and 6-nitrobenzimidazole nitrate. Specifications 443,559, 531,246, 531,312, 537,921, 541,589, 547,064, 548,019, 586,211, 592,676, 598,657, 791,219, 874,078 and U.S.A. Specifications 1,970,578 and 2,350,138 are referred to.
Patent GB-645382-A (GB)
Title: Improvements in or relating to luggage carriers
IPC: B62B5/00
Filed: 1948-03-15
Abstract: 645,382. Collapsable luggage carrier. FLORY, H. E. March 15, 1948, No. 7781. [Class 108(i)] A luggage carrier comprises a pair of wheel mountings each having three plates 1, 2, 3. 1<SP>1</SP>, 2<SP>1</SP>, 3<SP>1</SP> mutually at right angles, connected by pairs of levers 6, 6a, 6<SP>1</SP>, 6a<SP>1</SP> to a plate 8 and by pairs of levers 5, 5a, 5<SP>1</SP>, 5a<SP>1</SP> to a plate 7. A flexible strap 8 having a handle 11 is secured to slots in the plates 7, 8 so that tightening the strap 8 automatically adjusts the width of the carrier to the suitcase &c.
Patent GB-127852-A (GB)
Title: Process for Obtaining Nitrogen from Air.
IPC: C01B21/04
Filed: 1917-05-31
Abstract: 127,852. Elektrizitatswerk Lonza. June 17, 1916, [Convention date]. Nitrogen is obtained by absorbing the oxygen from air in a solution of ammonium sulphite, which becomes oxidized to ammonium sulphate, in a counter-current apparatus such as a series of spraying-towers, at a temperature of, preferably, 70-75‹ C. Ammonia carried away by the gas may be recovered. The nitrogen obtained may be used in the manufacture of cyanamides, and the ammonium sulphite may be obtained by the union of ammonia made from cyanamide, and sulphur dioxide made from pyrites, sulphur, gypsum, &c.
Patent GB-564829-A (GB)
Title: Improved thermoplastic resins
IPC: C08F12/18
Filed: 1942-06-08
Abstract: Thermoplastic resins are prepared by polymerizing at ordinary or elevated temperatures dichlorstyrene with two nuclear-substituted chlorine atoms.  Copolymers may be prepared by polymerizing the mixed isomers or mixtures with other vinyl compounds.  Polymerization accelerators, e.g. hydrogen peroxide, benzoyl peroxide, ascaridol, potassium persulphate and sodium perborate may be used. Polymerization at ordinary temperatures may be accelerated by heating at 45 DEG  to 50 DEG  C.  Examples describe the polymerization of 2,4-, 2,6-, 3,4-, 2,5-, 2,3- and 3,5-dichlorstyrene mixtures thereof and mixtures with styrene, a -methyl styrene, acrylic nitrile, methyl acrylate and methyl methacrylate.  The products are soluble in chlorinated solvents and may be plasticized with tricresylphosphate or dibutyl sebacate.  A dichlorstyrene may be prepared by chlorinating ethyl benzene in the presence of iron until two chlorine atoms become attached to the ring.  The fraction boiling at 204-220 DEG  C. is chlorinated in the side chain in the presence of light. The fraction boiling at 104 to 106 DEG  C. at 6.5 mm. pressure is passed through a furnace heated to 400 to 450 DEG  C. at 15 mm. pressure and the fraction of the product boiling at 81 to 88 DEG  C. at 6 mm. pressure separated.  Specification 564,828 is referred to.
Patent GB-1181073-A (GB)
Title: Improvements in or relating to the Manufacture of Radial Core Carcass Tires
IPC: B29D30/36
Filed: 1967-02-20
Abstract: 1,181,073. Tyre-building drums. N.R.M. CORP. 20 Feb., 1967 [25 Feb., 1966], No. 7978/67. Heading B7C. A tyre-building drum comprises a flexible support surface 9 convertible from cylindrical to toroidal shape, non-yielding, shape-forming members 10 supporting said surface in the drum centre in both cylindrical and toroidal shapes, the drum ends 5, 8, 16, 17 and 5a, 8a, 16a, 17a being movable towards each other in synchronism with radial outward movement of the members 10. Annular coil springs 42 extend around the surface 9 and are covered with elastic layer 11 fixed at the drum ends. Circumferentially-spaced members 10 are each supported on links 14, 15 pivoted to sleeves 12, 12a engaging screw 2. Brackets 5, 5a carrying the other parts of the drum ends also engage screw 2. The hand and pitch of the threads on the screw are arranged to provide the synchronism when the screw is rotated. With the drum in its toroidal shape, pistons 24, 24a are moved by fluid pressure to pivot levers 22, 22a and hence leaf-springs 19, 19a to apply the side-wall layers to the shaped carcass.
Patent GB-181789-A (GB)
Title: Improvements in or relating to self propelling road vehicles
IPC: B62D61/08
Filed: 1921-03-15
Abstract: 181,789. Guinness, E. E., and G. S. Motor Co. March 15, 1921. Frame components, applying and combining.-A motor vehicle with two wheels at the front and one at the rear has a framework a which provides a front platform to which a sidecar type of body is bolted and a rear platform to support the power unit and change-speed gear.
Patent GB-1073152-A (GB)
Title: Control apparatus in equipment for freeze-drying liquid,semi-liquid or granular material
Inventor: RIDGE RONALD ARTHUR JAMES
IPC: G05D23/22
Filed: 1964-02-26
Abstract: 1,073,152. Freeze drying. VICKERS Ltd. Feb. 18, 1965 [Feb. 26, 1964], No. 8049/64. Heading F4G. [Also in Division G3] A temperature control system for freeze drying materials in a vacuum chamber comprises electric heaters 3, 4, each in contact with thermocouples 5, connected in parallel or series to an indicating galvanometer-phototransistor type controller 12 which disconnects the heaters or reconnects them from parallel to series at a determined temperature. A further set of thermocouples 6 also in parallel or series in contact with the material act on a further controller 14 to switch the heaters off or reconnects them from parallel to series if this has not already been done. The arrangement may be controlled by a programme cam which varies the set temperature with time. The controllers 12, 14 may be replaced by transductors, the thermocouples by temperature sensitive resistors, and the electric heaters by steam or hot water heat exchangers. A freeze drying tunnel is described in the Specification wherein the heaters and trays of material are moved stepwise through a series of stations which provide heat to the material. Additional thermocouples deeply embedded in the material may terminate the drying cycle.
Patent GB-555394-A (GB)
Title: Improvements in and relating to hatchets, axes and similar tools
IPC: B25G3/02
Filed: 1942-06-12
Abstract: 555,394. Hatchets &c. HARDYPICK, Ltd., and UNWIN, W. E. June 12, 1942, No. 8056. [Classes 61 (i) and 61 (ii)] A hatchet, axe &c. e punched from a metal plate of uniform thickness is secured to the handle a by means of a shank part f engaged in slots in the handle end and in a ferrule b thereon and secured by studs or rivets g passing through blade, ferrule and handle. The end of the shank f may be extended to form a pointed tool h.
Patent GB-180617-A (GB)
Title: Improved back-spacing mechanism for typewriters
IPC: B41J25/02
Filed: 1920-11-25
Abstract: 180,617. Alexander, J. Nov. 25, 1920. Back-spacing mechanism. - In mechanism wherein the back-spacing pawl is mounted on a slide, the operating-device consists of a rockshaft provided with upwardly and horizontally extending arms i, k connected by links l, x to a key-lever and the slide e respectively, the keylever being fulcrumed at the rear and spring- pressed, preferably in the manner described in Specification 180,352. The slide e may be formed with an offset y carrying a spring-urged pawl f, release of the pawl from the feed-rack d being effected by the tail of the pawl engaging one of the guide-screws h of the slide.
Patent GB-1367130-A (GB)
Title: Magnetic bubble domain system
IPC: G11C19/08
Filed: 1972-02-22
Abstract: 1367130 Moving domain devices ROCKWELL INTERNATIONAL CORP 22 Feb 1972 [12 March 1971 (2)] 8175/72 Heading H3B In a bubble domain system domains are propagated along strips of material 12, Fig. 1, having restricted portions such as 14, 15. Because the edges of the strip tend to repel domains this provides preferred sites in the unrestricted portions, and the pattern of propagation conductors may be simplified. One possible propagation conductor is shown at 30 in Fig. 1, and it passes over the strip a little to the right of the centres of the restricted portions; the direction of the off-centre displacement determines which way the domains move along the strip when A.C. is passed through the conductor. Another conductor is shown in Fig. 2 and takes the form of a sheet overlying the strip and having windows over the right hand parts of the unrestricted portions. When A.C. is passed through this sheet the associated field again moves the domains. The strip may be formed by etching away part of a film on a substrate as shown, or by filling grooves in a substrate with bubble domain material as in Specification 1,367,123 or by etching grooves partly through a bubble domain film on a substrate as in Specification 1,367,128. Materials.-The substrate is preferably a monocrystalline garnet of J 3 Q 5 O 12  formula, such as Y 0À45 Gd 2À55 Ga 5 O 12 , or Dy 0À65 Gd 2À35 Ga 5 O 12  or Sm 3 Ga 5 O 12 . The strip material is also preferably a single crystal garnet of J 3 Q 5 O 12  formula, such as Y 3 Ga 1À2 Fe 3À8 O 12  or Tb 3 Fe 5 O 12 . The substrate may use a non-garnet oxide, particularly if the strip is an orthoferrite.